Difference between revisions of "NGC 4414"
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| − | '''NGC 4414''' is a [[spiral galaxy]] in the [[constellation]] of [[Coma Berenices]].<ref name=annesAstronomy>[http://annesastronomynews.com/photo-gallery-ii/galaxies-clusters/ngc-4414/ NGC 4414, a dusty spiral galaxy in Coma Berenices] from annesasstronomynews.com</ref> It is a good example of a spiral galaxy, with its well defined spiral structure and features often seen in spiral galaxies, such as large dust lanes. However, it does not possess distinct spiral arms and as such, it is not a [[Grand Design Galaxy|grand design spiral galaxy]]. Instead it is classified as a [[flocculent spiral]].<ref>[https://apod.nasa.gov/apod/ap161120.html NGC 4414: A Flocculent Spiral Galaxy] from apod.nasa.gov</ref> The galaxy is a member of the Coma I cluster, not far from the Virgo cluster of galaxies.<ref name=annesAstronomy/> | + | '''NGC 4414''' is a [[spiral galaxy]] in the [[constellation]] of [[Coma Berenices]].<ref name=annesAstronomy>[http://annesastronomynews.com/photo-gallery-ii/galaxies-clusters/ngc-4414/ NGC 4414, a dusty spiral galaxy in Coma Berenices] from annesasstronomynews.com</ref> It is a good example of a spiral galaxy, with its well defined spiral structure and features often seen in spiral galaxies, such as large dust lanes. However, it does not possess distinct spiral arms and as such, it is not a [[Grand Design Galaxy|grand design spiral galaxy]]. Instead it is classified as a [[Flocculent Spiral Galaxy|flocculent spiral]].<ref>[https://apod.nasa.gov/apod/ap161120.html NGC 4414: A Flocculent Spiral Galaxy] from apod.nasa.gov</ref> The galaxy is a member of the Coma I cluster, not far from the Virgo cluster of galaxies.<ref name=annesAstronomy/> |
At around 60 million [[light year]]s away, NGC 4414 has a diameter of around 56,000 light years, a little over half that of the [[Milky Way]].<ref name=annesAstronomy/> Its outer arms contain vast amounts of [[dust]], as well as luminous blue variable stars, which are so bright individual stars can be made out.<ref name=lumniousBlueVariable/> One [[supernova]] has been observed in the galaxy, SN 1974G.<ref>[https://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=SN+1974G&extend=no&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES SN 1974G] from ned.ipac.caltech.edu, NASA/IPAC Extragalactic Database</ref> Interestingly, there is currently no evidence for an extremely massive object, such as a supermassive [[black hole]], at the centre of the galaxy.<ref name=annesAstronomy/> | At around 60 million [[light year]]s away, NGC 4414 has a diameter of around 56,000 light years, a little over half that of the [[Milky Way]].<ref name=annesAstronomy/> Its outer arms contain vast amounts of [[dust]], as well as luminous blue variable stars, which are so bright individual stars can be made out.<ref name=lumniousBlueVariable/> One [[supernova]] has been observed in the galaxy, SN 1974G.<ref>[https://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=SN+1974G&extend=no&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES SN 1974G] from ned.ipac.caltech.edu, NASA/IPAC Extragalactic Database</ref> Interestingly, there is currently no evidence for an extremely massive object, such as a supermassive [[black hole]], at the centre of the galaxy.<ref name=annesAstronomy/> | ||
Latest revision as of 19:25, February 19, 2018
| NGC 4414 | |
|---|---|
| |
| Observational Data | |
| Designation | NGC 4414 UGC 7539 |
| Right ascension | 12h 26m 27.1s |
| Declination | +31° 13′ 25″ |
| Constellation | Coma Berenices |
| Type of object | Spiral galaxy |
| Dimensions | 3.6x2.0'[1] |
| Magnitude | Apparent Mag: 10.96[1] Absolute Mag: -10.0[2] |
| Redshift | 0.002395±0.000023[3] |
| Astrometry | |
| Distance from Earth | 60 million ly[1] |
| Radial velocity | 717±7 km/s[3] |
NGC 4414 is a spiral galaxy in the constellation of Coma Berenices.[4] It is a good example of a spiral galaxy, with its well defined spiral structure and features often seen in spiral galaxies, such as large dust lanes. However, it does not possess distinct spiral arms and as such, it is not a grand design spiral galaxy. Instead it is classified as a flocculent spiral.[5] The galaxy is a member of the Coma I cluster, not far from the Virgo cluster of galaxies.[4]
At around 60 million light years away, NGC 4414 has a diameter of around 56,000 light years, a little over half that of the Milky Way.[4] Its outer arms contain vast amounts of dust, as well as luminous blue variable stars, which are so bright individual stars can be made out.[2] One supernova has been observed in the galaxy, SN 1974G.[6] Interestingly, there is currently no evidence for an extremely massive object, such as a supermassive black hole, at the centre of the galaxy.[4]
References
- ↑ 1.0 1.1 1.2 NGC 4414 from NASA/IPAC Extragalactic Database
- ↑ 2.0 2.1 Frattare, L. M., Zurek, D. R., The Discovery of a Possible Luminous Blue Variable in NGC 4414, American Astronomical Society, 194th AAS Meeting, #82.02; Bulletin of the American Astronomical Society., Vol. 31: 967, On the Astronomy Abstract Service
- ↑ 3.0 3.1 NGC 4414 from simbad.u-strasbg.fr
- ↑ 4.0 4.1 4.2 4.3 NGC 4414, a dusty spiral galaxy in Coma Berenices from annesasstronomynews.com
- ↑ NGC 4414: A Flocculent Spiral Galaxy from apod.nasa.gov
- ↑ SN 1974G from ned.ipac.caltech.edu, NASA/IPAC Extragalactic Database
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